Leases (Lease Expenses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating leases expense	$ 846	$ 843	$ 2,268	$ 2,336
Short-term leases expense	154	68	384	150
Payments on operating lease obligations	$ 719	$ 719	$ 2,187	$ 2,243